A software package interfacing to SPICE is developed based on several new or revised models for hot electron studies. For substrate current generation, we present a new model for the characterizing the width of impact ionization region which is channel length and bias dependent. For modeling the hot electron injection into the gate oxide, a revised thermionic emission model is developed. For hot electron induced degradation, previously developed generation-trapping models are used. Good correlations with the experimental and simulation results are obtained. The program can be used to analyze the reliability and the biasing stability of MOS circuits.
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